Die-press



(No Model.) I 3 Sheets-Sheet 1.

w. 11., TURNER.

DIE PRESS.

No. 451,634. Patented May 5,1891.

THl mums PEYEli co mo'ro-uma, WASHINGYON n c (No Model.) 3 Sheets-Sheet 2.

W. A. TURNER. DIE PRESS.

No. 451,534. Patented May 5, 1891.

l I I 2. N J3 I j- ,4 7 11 Z A1 MIIWWW M h l J AIM mg m Witnesses Snow do;

W @2913 vm/' awning, m

(No Model.) 3 Sheets-Sheet 3.

W. A. TURNER.

DIE PRESS.

No. 451,534. Patented May 5,1891.

ww wooao I s mentor J $1 1M 61mm;

UNITED STATES PATENT OFFICE.

lVILLlAM A. TURNER, OF lVORCESTER, MASSACHUSETTS.

DIE-PRESS.

SPECIFICATIOLI forming part of Letters Patent No. 451,534, dated May 5, 1891.

Application filed December 9, 1890. Serial No. 374,024. (No model.)

To all whom it may concern.-

Be it known that I, VILLIAM A. TURNER, a citizen of the United States, and a resident of Worcester,in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in a Die-Press, of which the following is a specification, reference being had to the accompanying drawings, forming a part of. the same, and in which Figure 1 represents a front elevation of a die-press embodying my invention. Fig. 2 represents a top view of the die-boxes and the devices by which the blank is moved from one of the die-boxes to the other and upon its completion removed from the machine. Fig. 3 is a front view of the parts shown in Fig. 2 with the die-boxes represented in sectional view on line Y Y, Fig. 2. Figs is a front view of the upper or male" dies with the die-holder shown in sectional view. Fig. 5 is a bottom View of the upper or male dies. Fig. 6 is a bottom view of the upper or male dies with the space between them reduced; and Fig. 7 represents the view shown in Fig. 2, but with the operating portions by which a blank is moved from one of the die-boxes to the other shown in a different position.

Similar letters refer to similar several views.

My invention relates to certain improvements in a single-action die-press by which two operations are simultaneously performed upon the blank and by which the completed blank is removed from the press; and it consists in the arrangementof two die-boxes capaparts in the I ble of adjustment so that the distance between the centers of the boxes can be varied in the use of dies or punches co-operating with the dies held in the die-boxes and capable of a corresponding adjustment, and in the arrangement of devices by which a piece of sheet metal, after having been operated upon by one set of dies, is moved into position to be operated upon by a second set of dies and the completed work removed from the press.

In the accompanying drawings, A denotes the frame-work of a single-action die-press of the well-known and ordinary form of construction.

B denotes the table, upon which are mounted the die-boxes C and D, the former resting directly upon the table B and the latter resting upon the box 0. The die-box D is provided 'with the slots D, which allow the box to be moved toward or away from the box 0 upon the ways D and fastened in its desired position by the clamping-bolts D thereby varying the distance between the centers of the dies held in the die-boxes C and D. The diebox D holds'an annular die or ring D, fitting the cylindrical punch E, by which a circular blank is cut from a sheet of sheet metal. The die-box 0 holds a die C, by which the circular sheet-metal blank cut by the dies D and E is formed into its desired shape by the action of the upper reciprocating die F.

The upper reciprocating dies E and F are held in a die-holder E", which is provided with a shank E entering a socket in the head E to which a reciprocating motion is imparted by the crank-shaft E in the usual manner in die-presses of this class.

The die F is held in a socket coincident with the die 0, and the die or punch E is held in an oblong recess E in the die-holder E, and is maintained in its position by bushings a, Fig. 5, and b c, Fig. 6, the bushings being varied to maintain the die E at different distances from the die F to correspond with the distance between the die D and the die 0'. Resting upon and having a sliding motion over the upper surface of the lower die-box O is a plate G, sliding in the guides G G and having a rectangular opening G to receive the circular blank as it is cut out by the action of the die D and the reciprocating punch E. During the downward movement of the dies E and F the opening G of the sliding plate G is in the position represented in Fig. 7 of the drawings, and as the circular blank is cut from the sheet metal it is forced through the annular die D into the opening G and as the dies E and F move upward the plate G is moved to the left by means of connected actuating mechanism, hereinafter described, carrying the circular blank to the die 0' and leaving it concentric therewith, to be pressed into the desired shape at the next downward movement of the reciprocating die F, when a second circular blank is cut from the sheetmetalbythedieE. Duringthedownward movement of the dies 1; and F the plate G is moved back to the position shown in 5 Fig. 7 by the retractile-spring G, acting against the pin G and the guide G The actuating mechanism by which the sliding plate G is moved toward the leftin the operation of moving the circular blank 10 from the die D to the die 0 is represented in plan view in Figs. 2 and 7 of the drawings and in front view in Fig. 3 of the drawings, and it consists of the pivoted lever-ll, pivoted at H upon the table B, one end of which is r5 connected to the sliding plate G and the opposite end is actuated by the sliding bar I, sliding in ways I I and carrying a frictionroll 1 which is acted upon by the inclined edge of the cam-plate J, projecting from a sleeve J attached to the link K, which has a reciprocating motion by means of the cam K acting against a pin K on the link K. The link is arranged tohave a downward motion as the upper dies E and F move up and bring the inclined edge of the canrplate J against the friction-roll in the end of the sliding bar I, thereby oscillating the pivoted lever and sliding the plate G to the left. Upon the reverse movement of the link K the 0 spring 1 will return the plate G to its normal position to receive the next succeeding circular blank as it is cut and forced downward through the die D by the downward motion of the die E.

Placed above the cam-plate J and sleeve .1 is a second sleeve J" with a projecting camplate J which upon the downward motion of the link K is brought against a friction-roll carried in the end of the short arm L of a bell-crank lever, which is pivoted at L and which has a long arm I. extending over the lower die-box C, with its end curved to engage the completed blank as it is raised from the die 0' and push it toward the rear of the 5 press by a short and quick movement of the long arm of the bell-crank as it is actuated by the downward motion of the cam-plate J Upon the upward motion of the link K the movement of the bell-crank is reversed by the means of a spring I; and broughtinto t-heposition represented in Figs. 2 and 7 of the drawings. The link K is connected at its lower end with the pivoted lever N, pivoted to a bracketbeneath the table B. The opposite end of the pivoted lever K is connected with a spindle N, which slides through a bearing N beneath the table B and by which it is held concentric wit-l1 the die C. As the link K is moved downward by the action of do the cam K, the inner end of the pivoted lever is raised,carrying the spindle N upward against the completed blank as it rests in the die C, raising the blank into the position as shown at (I, Fig. 1, and in position to be acted upon by the long arm I) of the bell-crank. To the spindle NI attach a collar N by which the upward motion of the spindle N is limited, and the link K is provided with a slot 0, inelosing a pin or stud O on pivoted lever N, and a spring 0 carried by the link K, bears against the end of the lever N, as represented in Fig. 1. \Vhen the link K is moved downward, the spindle N is raised until its motion islimited by the collar N when the spring 0 is compressed to allow the continued motion of the link K.

The operation of myim proved die-press is as follows: The metal sheet is inserted between the die D and the reciprocating die E, which, upon its downward motion, punches a blank from the sheet and carries it downward upon the upper surface of the lower die-box C and within the rectangular opening G". Upon the upward movement of the dies E and F the plate G is moved toward the left, carrying the blank over and concentric with the die G. The plate G- is then returned to its normal position, another blank is fed to the dies I) and E, and upon the next downward motion of the dies E and F a second circular blank is carried into the opening G, and at the same time the first blank is shaped between the dies 0 and F into the desired form. As the dies E and F are again raised, the spindle N is raised, pushing the blank out of the die G into the position shown at (l in Fig. i] of the drawings, the long arm of the bellerank lever throws the completed blank toward the rear of the press, the plate G is again moved back and forth, as before, and the operation repeated. At each reciprocating motion of the dies E and F a blank is cut from the metal sheet, and the circular blank so cut is pressed into the shape desired simultaneously with the action of the dies E and I)".

Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. In a die-press, the combination, with a pair of stationarydies, of a reciprocating-die holder, a reciprocating die held in a fixed position in said die-holder with its axis coincident with one of said stationary dies, a second reciprocating die adjustably held in said die-holder, and connected means, substantially as described, whereby said die is adjustably fixed in position in said holder with its axis coincident with the axis of the other stationary die, substantially as described.

2. In a die-press, the combination, with a pair of upper reciprocating dies, of a lower stationary die with its axis coincident with the axis of one of said upper dies and a second lower die adjustably fixed with relation to said stationary die, and connected means, substantially as described, whereby the position of said ad j ustahle die is changed to bring its axis coincident. with the axis of the other of said upper dies, substantially as described.

3. In a die-press, the combination of a reciprocating-die holder carrying a fixed die and being provided with an oblong socket to receive a second die having a circular shank, and a crescent-shaped bushing around said circular shank, whereby the die is held in a IIO desired position with reference to the other fixed die, substantially as described.

4. In a die-press, the combination, with two stationary dies placed in different horizontal and vertical planes, of a movable carrier moving in a horizoutal'plane between said dies, whereby the blank as completed by the upper of said stationary dies is brought into a position coincident with the lower of said stationary dies, and connected operating mechanism, substantially as described, whereby a reciprocating movement is imparted to said carrier, substantially as described.

5. In a die-press, the combination, with a pair of reciprocating dies, of two die-boxes holding stationary dies and placed in different horizontal planes, a sliding plate sliding between said die-boxes and provided with an opening to receive the blank from the upper of the die-boxes, and connected actuating mechanism by which said plate is moved in correspondence with the upward movement of said reciprocating dies, substantially as described.

6. In a die-press, the combination of the stationary-die boxes placed in different horizontal planes, a sliding plate sliding between said boxes and provided with an opening to receive the blank, a cam-plate attached to a reciprocating portion of the mechanism, and connected intermediate actuating mechanism between said reciprocating cam-plate and said sliding plate, substantially as described.

7. In a die-press, the combination, with a pair of stationary-die boxes, of a sliding plate by which the blank is moved from one of said die-boxes to the other, and having connected actuating mechanism by which said plate is moved in one direction and a retractile spring by which the motion of the sliding plate is reversed, substantially as described.

8. In a die-press, the combination, with a stationary die in which a metal blank is shaped, of a bell-crank lever with one of its arms arranged to move over and above said stationary die for the purpose of removing the completed blank, and connected actuating mechanism by which said arm is moved, substantially as described.

9. In a die-press, the combination, with a stationary-die box, of a bell-crank lever havin g one of its arms arranged to move over and above said die-box, and a cam-plate attached to a reciprocating part of the operating mechanism and engaging the other arm of said bellcrank lever, by which said bell-crank lever is moved for the purpose of removing the completed blank from said stationary die, substantially as described.

10. In a die-press, the combination, with a stationary die in which the sheet-metal blank is shaped, of a spindle having a reciprocating motion to lift the completed blank from said stationary die, and a pivoted lever capable of an angular movement in a horizontal plane above said stationary die, and connected operating mechanism whereby said pivoted lever and said reciprocating spindle are moved in correspondence to deliver the completed blank from said stationary die, substantially as described.

11. In a die-press, the combination, with a stationary die in which a sheet-metal blank is shaped, of a sliding spindle sliding through said stationary die, by which the completed blank is raised out of said die, a pivoted lever by which said spindle is moved through said die, a stop attached to said spindle to limit its motion as the blank is raised, and connected actuating mechanism having a yielding connection with said pivoted lever, substantially as described.

12. In a die-press, the combination of a pair of stationary dies placed in different horizontal planes, a plate provided with an opening to receive the blank and sliding between said dies, a reciprocating spindle by which the completed blank is raised out of its shapingdie, and a pivoted lever arranged to move the raised blank from the die by its angular move 'ment, and connected actuating mechanism by which said sliding plate, said reciprocating spindle, and said pivoted lever are operated, substantially as described.

Dated the 5th dayof December, 1890.

WILLIAM A. TURNER.

Witnesses:

E. CONVERSE, RUFUS B. FOWLER. 

